WO2000045518A3 - Method and apparatus for reducing peak-to-average ratio in a cdma communication system - Google Patents

Method and apparatus for reducing peak-to-average ratio in a cdma communication system Download PDF

Info

Publication number
WO2000045518A3
WO2000045518A3 PCT/US2000/002292 US0002292W WO0045518A3 WO 2000045518 A3 WO2000045518 A3 WO 2000045518A3 US 0002292 W US0002292 W US 0002292W WO 0045518 A3 WO0045518 A3 WO 0045518A3
Authority
WO
WIPO (PCT)
Prior art keywords
auxiliary pilot
present
pilot channels
average ratio
reducing peak
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2000/002292
Other languages
French (fr)
Other versions
WO2000045518A2 (en
Inventor
Serge Willenegger
Jack M Holtzman
Abhijit Shanbhag
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
Original Assignee
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Priority to DE60036605T priority Critical patent/DE60036605T2/en
Priority to CNB008031622A priority patent/CN1196273C/en
Priority to AU29765/00A priority patent/AU2976500A/en
Priority to HK02103351.5A priority patent/HK1041750B/en
Priority to JP2000596669A priority patent/JP2002536864A/en
Priority to EP00908418A priority patent/EP1147618B1/en
Publication of WO2000045518A2 publication Critical patent/WO2000045518A2/en
Publication of WO2000045518A3 publication Critical patent/WO2000045518A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70706—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation with means for reducing the peak-to-average power ratio

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Dc Digital Transmission (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

The present invention is a novel and improved method and apparatus for reducing peak to average ratio in a system using auxiliary pilot channels as described in the TIA/EIA TR45.5 'cdma2000 ITU-R RTT Candidate Submission' to the ITU for consideration in the third generation wireless communication systems. A first method proposed in the present invention to deal with the above stated problem is to alter the phase of the auxiliary pilot channels to reduce to prevent the auxiliary pilot channels from adding constructively. A second method proposed in the present invention to deal with the above stated problem is to gate out the portion of the auxiliary pilot channels that add constructively. The present invention also proposes a novel demodulator design for receiving signals using the modified auxiliary pilot signals.
PCT/US2000/002292 1999-01-28 2000-01-28 Method and apparatus for reducing peak-to-average ratio in a cdma communication system Ceased WO2000045518A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE60036605T DE60036605T2 (en) 1999-01-28 2000-01-28 METHOD AND DEVICE FOR REDUCING THE MAXIMUM MEDIUM POWER IN A CDMA COMMUNICATION ARRANGEMENT
CNB008031622A CN1196273C (en) 1999-01-28 2000-01-28 Method and apparatus for reducing peak-to-average ratio in a CDMA communication system
AU29765/00A AU2976500A (en) 1999-01-28 2000-01-28 Method and apparatus for reducing peak-to-average ratio in cdma communication system
HK02103351.5A HK1041750B (en) 1999-01-28 2000-01-28 Method and apparatus for reducing peak-to-average ratio in a cdma communication system
JP2000596669A JP2002536864A (en) 1999-01-28 2000-01-28 Apparatus and method for reducing peak / average rate in CDMA communication
EP00908418A EP1147618B1 (en) 1999-01-28 2000-01-28 Method and apparatus for reducing peak-to-average ratio in a cdma communication system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/239,449 US6721349B1 (en) 1999-01-28 1999-01-28 Method and apparatus for reducing peak-to-average ratio in a CDMA communication system
US09/239,449 1999-01-28

Publications (2)

Publication Number Publication Date
WO2000045518A2 WO2000045518A2 (en) 2000-08-03
WO2000045518A3 true WO2000045518A3 (en) 2000-11-30

Family

ID=22902173

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/002292 Ceased WO2000045518A2 (en) 1999-01-28 2000-01-28 Method and apparatus for reducing peak-to-average ratio in a cdma communication system

Country Status (9)

Country Link
US (1) US6721349B1 (en)
EP (2) EP1147618B1 (en)
JP (2) JP2002536864A (en)
KR (1) KR100740738B1 (en)
CN (1) CN1196273C (en)
AT (2) ATE375031T1 (en)
AU (1) AU2976500A (en)
DE (2) DE60036605T2 (en)
WO (1) WO2000045518A2 (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6671250B1 (en) * 1999-08-17 2003-12-30 Qualcomm Incorporated Method for deep paging
US6961369B1 (en) 1999-11-09 2005-11-01 Aware, Inc. System and method for scrambling the phase of the carriers in a multicarrier communications system
US6928084B2 (en) * 2000-03-28 2005-08-09 At & T Corp. OFDM communication system and method having a reduced peak-to-average power ratio
DE60102117T2 (en) * 2000-08-02 2004-09-09 Lucent Technologies Inc. Method of reducing the peak to medium power ratio in a wireless communication system
US6847677B1 (en) * 2000-09-29 2005-01-25 Qualcomm, Incorporated Method and apparatus for efficient Walsh covering and summing of signals in a communication system
JP3947770B2 (en) * 2001-03-12 2007-07-25 直樹 末広 CDMA communication system using multiple spreading sequences
US7453933B2 (en) * 2001-05-04 2008-11-18 Lucent Technologies Inc. Method of estimating a signal-to-interference+noise ratio (SINR) using data samples
KR100866196B1 (en) * 2001-12-29 2008-10-30 삼성전자주식회사 Peak Power vs. Average Power Reduction Device and Method in Orthogonal Frequency Division Multiplexed Wireless Communication Systems
KR100452512B1 (en) * 2002-08-16 2004-10-13 엘지전자 주식회사 A spreading device and a method of walsh code for improving channel capacity
KR100956820B1 (en) * 2003-05-12 2010-05-12 엘지전자 주식회사 How to transmit an overhead channel in a mobile communication system
KR20050065295A (en) * 2003-12-23 2005-06-29 삼성전자주식회사 Space time block codes encoding method by using auxiliary symbol
JP4619797B2 (en) * 2005-01-14 2011-01-26 富士通株式会社 Wireless communication system and wireless communication device
US7894402B2 (en) * 2005-04-15 2011-02-22 Alcatel-Lucent Usa Inc. High rate packet data spatial division multiple access (SDMA)
US20070058752A1 (en) * 2005-07-29 2007-03-15 Faraday Technology Corp. Methods and systems for estimating sampling frequency offset of OFDM symbols
CN101060344B (en) * 2006-04-19 2010-05-12 大唐移动通信设备有限公司 Medium-frequency crest suppression method and system for time-division synchronization code division-multiple-access system
US7848446B2 (en) * 2006-09-27 2010-12-07 Telefonaktiebolaget L M Ericsson (Publ) Reduction of peak-to-average-power ratio in a telecommunications system
EP2416510A1 (en) * 2009-03-31 2012-02-08 Panasonic Corporation Base station, mobile station, pilot transmission method, and channel estimation method
US8325697B2 (en) * 2009-10-13 2012-12-04 Qualcomm Incorporated Methods and apparatus for selecting and transmitting pilots
US8331488B2 (en) 2009-10-13 2012-12-11 Qualcomm Incorporated Methods and apparatus for communicating information using non-coherent and coherent modulation
CN101841349B (en) * 2010-04-12 2013-04-03 北京理工大学 Method for inhibiting MPSK narrowband interference of direct sequence spread spectrum system (DSSS)
US11032061B2 (en) * 2018-04-27 2021-06-08 Microsoft Technology Licensing, Llc Enabling constant plaintext space in bootstrapping in fully homomorphic encryption
US11764940B2 (en) 2019-01-10 2023-09-19 Duality Technologies, Inc. Secure search of secret data in a semi-trusted environment using homomorphic encryption
CN109635940B (en) * 2019-01-28 2021-04-06 深兰人工智能芯片研究院（江苏）有限公司 Image processing method and image processing device based on convolutional neural network
CN113940040B (en) * 2019-06-13 2025-05-13 株式会社Ntt都科摩 communication device
US12206445B2 (en) * 2021-11-12 2025-01-21 Samsung Electronics Co., Ltd. Transceiver and operating method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998018217A1 (en) * 1996-10-18 1998-04-30 Telefonaktiebolaget Lm Ericsson (Publ) Transmission timing offset method for ds-cdma mobile telephone systems
EP0851601A2 (en) * 1996-12-27 1998-07-01 Matsushita Electric Industrial Co., Ltd. CDMA multi-code radio reception apparatus
US5793797A (en) * 1995-05-09 1998-08-11 Unisys Corporation Data transmisson system with a low peak-to-average power ratio based on distorting small amplitude signals
WO2000013337A2 (en) * 1998-08-31 2000-03-09 Qualcomm Incorporated Method and apparatus for reducing amplitude variations in communication signals employing inserted pilot symbol

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4901307A (en) 1986-10-17 1990-02-13 Qualcomm, Inc. Spread spectrum multiple access communication system using satellite or terrestrial repeaters
US5056109A (en) 1989-11-07 1991-10-08 Qualcomm, Inc. Method and apparatus for controlling transmission power in a cdma cellular mobile telephone system
US5109390A (en) 1989-11-07 1992-04-28 Qualcomm Incorporated Diversity receiver in a cdma cellular telephone system
US5101501A (en) 1989-11-07 1992-03-31 Qualcomm Incorporated Method and system for providing a soft handoff in communications in a cdma cellular telephone system
US5485486A (en) 1989-11-07 1996-01-16 Qualcomm Incorporated Method and apparatus for controlling transmission power in a CDMA cellular mobile telephone system
US5381449A (en) * 1990-06-12 1995-01-10 Motorola, Inc. Peak to average power ratio reduction methodology for QAM communications systems
US5103459B1 (en) 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
US5467367A (en) 1991-06-07 1995-11-14 Canon Kabushiki Kaisha Spread spectrum communication apparatus and telephone exchange system
US5550809A (en) 1992-04-10 1996-08-27 Ericsson Ge Mobile Communications, Inc. Multiple access coding using bent sequences for mobile radio communications
US5329547A (en) 1993-03-11 1994-07-12 Motorola, Inc. Method and apparatus for coherent communication in a spread-spectrum communication system
MY112371A (en) 1993-07-20 2001-05-31 Qualcomm Inc System and method for orthogonal spread spectrum sequence generation in variable data rate systems
US5471497A (en) * 1993-11-01 1995-11-28 Zehavi; Ephraim Method and apparatus for variable rate signal transmission in a spread spectrum communication system using coset coding
KR960003102B1 (en) 1993-12-01 1996-03-04 재단법인 한국전자통신연구소 Channel Modulation Circuit of CDMA Mobile Communication Base Station Modulator and Modulator Using the Same
US5418813A (en) 1993-12-06 1995-05-23 Motorola, Inc. Method and apparatus for creating a composite waveform
JPH07235913A (en) 1994-02-23 1995-09-05 Sony Corp Spread spectrum communication device and signal strength detection device
US5442625A (en) 1994-05-13 1995-08-15 At&T Ipm Corp Code division multiple access system providing variable data rate access to a user
US5604730A (en) 1994-07-25 1997-02-18 Qualcomm Incorporated Remote transmitter power control in a contention based multiple access system
JP3444444B2 (en) 1994-09-30 2003-09-08 ソニー株式会社 Communication terminal device
KR970011690B1 (en) * 1994-11-22 1997-07-14 삼성전자 주식회사 Data receiver & transmitter of spread spectrum using pilot channel
US5566164A (en) 1994-12-19 1996-10-15 Stanford Telecommunications, Inc. Practical means for digital generation and combination of a multiplicity of CDMA/FDMA signals
US5623485A (en) 1995-02-21 1997-04-22 Lucent Technologies Inc. Dual mode code division multiple access communication system and method
JP3235766B2 (en) * 1995-06-12 2001-12-04 株式会社エヌ・ティ・ティ・ドコモ Multicarrier peak power suppression transmitter
JP2718398B2 (en) * 1995-06-30 1998-02-25 日本電気株式会社 CDMA base station transmitter
JPH0993652A (en) 1995-09-20 1997-04-04 Sony Corp Mobile communication method and mobile communication system
US5930230A (en) 1996-05-28 1999-07-27 Qualcomm Incorporated High data rate CDMA wireless communication system
US5926500A (en) 1996-05-28 1999-07-20 Qualcomm Incorporated Reduced peak-to-average transmit power high data rate CDMA wireless communication system
US5920552A (en) 1996-05-30 1999-07-06 Lucent Technologies, Inc. Variable rate coding for wireless applications
US5737326A (en) 1996-07-12 1998-04-07 Lucent Technologies Inc. Multi-code code division multiple access receiver
JP3311951B2 (en) * 1996-12-20 2002-08-05 富士通株式会社 Code multiplex transmitter
US5914950A (en) 1997-04-08 1999-06-22 Qualcomm Incorporated Method and apparatus for reverse link rate scheduling
CN1728575B (en) * 1997-05-14 2013-05-29 高通股份有限公司 Encoding method and encoding device
JP3093679B2 (en) * 1997-06-03 2000-10-03 三菱電機株式会社 CDMA communication method and CDMA communication device
US6044103A (en) * 1997-06-17 2000-03-28 Qualcomm Inc. Reduced peak-to-average amplitude dual channel link
US6130918A (en) * 1997-12-01 2000-10-10 Nortel Networks Limited Method and apparatus for reducing the peak-to-average ratio in a multicarrier communication system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5793797A (en) * 1995-05-09 1998-08-11 Unisys Corporation Data transmisson system with a low peak-to-average power ratio based on distorting small amplitude signals
WO1998018217A1 (en) * 1996-10-18 1998-04-30 Telefonaktiebolaget Lm Ericsson (Publ) Transmission timing offset method for ds-cdma mobile telephone systems
EP0851601A2 (en) * 1996-12-27 1998-07-01 Matsushita Electric Industrial Co., Ltd. CDMA multi-code radio reception apparatus
WO2000013337A2 (en) * 1998-08-31 2000-03-09 Qualcomm Incorporated Method and apparatus for reducing amplitude variations in communication signals employing inserted pilot symbol

Also Published As

Publication number Publication date
DE60036605T2 (en) 2008-07-03
DE60036605D1 (en) 2007-11-15
JP2002536864A (en) 2002-10-29
CN1196273C (en) 2005-04-06
US6721349B1 (en) 2004-04-13
HK1041750A1 (en) 2002-07-19
AU2976500A (en) 2000-08-18
ATE483279T1 (en) 2010-10-15
KR20010101758A (en) 2001-11-14
WO2000045518A2 (en) 2000-08-03
ATE375031T1 (en) 2007-10-15
EP1147618B1 (en) 2007-10-03
DE60045053D1 (en) 2010-11-11
CN1338157A (en) 2002-02-27
KR100740738B1 (en) 2007-07-19
JP2010050985A (en) 2010-03-04
EP1858171B1 (en) 2010-09-29
EP1147618A2 (en) 2001-10-24
EP1858171A1 (en) 2007-11-21

Similar Documents

Publication Publication Date Title
AU2976500A (en) Method and apparatus for reducing peak-to-average ratio in cdma communication system
ES2523868T3 (en) Procedure, base station, computer medium and processor to control the transmission energy of direct link signals
WO2002082684A3 (en) A cellular radio communication system with frequency reuse
CA2235822A1 (en) Packet switched radio channel traffic supervision
WO1998015106A3 (en) Cellular telephone interface system for AMPS and CDMA data services
CA2363850A1 (en) Stabilized bromine solutions, method of manufacture and uses thereof for biofouling control
AU5226198A (en) Method for producing recombinant virus
WO2001099384A3 (en) Method and apparatus for dynamic packet selection in bluetoth
EP1182383A3 (en) Compression piston ring
BR9904919A (en) Process for transmitting and receiving user data in a mobile communication system having at least one state transition.
EP1133070A3 (en) Transmit power control method and apparatus in a radio communication system
CA2215725A1 (en) Method and apparatus for maintaining call quality in a communication system
GB2364861B (en) Downlink power control method and CDMA communication system incorporating the control method
AU4171599A (en) Device and method for controlling transmission power of punctured frame
GB0001249D0 (en) Improvements in or relating to stairlifts
JPS5787244A (en) Wide band television tuner
EP0932285A3 (en) Reduction of instantaneous maximum power in multicarrier signals
CA2288713A1 (en) Subscriber handoff between multiple access communications system
AU3089000A (en) A tamp pad
EP1052796A3 (en) Audio signal converter switching modes in the presence of link impairments in a data communication channel
WO1998039905A3 (en) A system and method for providing high terminal coupling loss in a handsfree terminal
WO2002017229A3 (en) Method of color accentuation
AU3178897A (en) Method for producing xylitol
WO2001016126A3 (en) Method for producing gamma-butyrolactone
WO2000074663A3 (en) Use of allicin for control of weight in mammals

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 00803162.2

Country of ref document: CN

AK Designated states

Kind code of ref document: A2

Designated state(s): AE AL AM AT AU AZ BA BB BG BR BY CA CH CN CR CU CZ DE DK DM EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
AK Designated states

Kind code of ref document: A3

Designated state(s): AE AL AM AT AU AZ BA BB BG BR BY CA CH CN CR CU CZ DE DK DM EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): GH GM KE LS MW SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 2000908418

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2000 596669

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 1020017009500

Country of ref document: KR

WWP Wipo information: published in national office

Ref document number: 2000908418

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1020017009500

Country of ref document: KR

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWG Wipo information: grant in national office

Ref document number: 2000908418

Country of ref document: EP